Windows Dev Center

IStorageQueryResultBase.ContentsChanged event

[Some information relates to pre-released product which may be substantially modified before it's commercially released. Microsoft makes no warranties, express or implied, with respect to the information provided here.]

Fires when an item is added, deleted or modified in the folder being queried.

Syntax


event TypedEventHandler<IStorageQueryResultBase, Object> ContentsChanged

Event information

Delegate TypedEventHandler<IStorageQueryResultBase, Object>

Remarks

If you register a handler for this event, keep that handler registered while you suspend your app (in response to oncheckpoint or Suspending). Your app will not receive ContentsChanged events while it is suspended and when your app resumes it will receive a single event that aggregates all of the changes if any occurred.

Additionally, keep in mind that registering and removing event handlers are synchronous operations and might cause your app to hang briefly if you execute them on your app's UI thread. Wherever possible, use a thread other than your app's UI thread to register and unregister these event handlers.

Requirements (Windows 10 device family)

Device family

Universal

API contract

Windows.Foundation.UniversalApiContract, introduced version 1.0

Namespace

Windows.Storage.Search
Windows::Storage::Search [C++]

Metadata

Windows.Foundation.UniversalApiContract.winmd

Requirements (Windows 8.x and Windows Phone 8.x)

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows 10 Mobile

Namespace

Windows.Storage.Search
Windows::Storage::Search [C++]

Metadata

Windows.winmd

See also

IStorageQueryResultBase

 

 

Show:
© 2015 Microsoft